Unilateral breast uptake of 67Ga from breast feeding

Unilateral 67Ga uptake was observed in the left breast of a 23-year-old woman who had nursed her infant on that side for 10 months. Careful clinical examination and follow-up failed to reveal any evidence of breast disease. Unilateral breast feeding should be considered in the differential diagnosis of asymmetric 67Ga localization in the breast.